Full-Service HVAC Contracting Firm

“since 1916”

Clark Mechanical, LLC was established in 2009 and is a privately owned, full-service HVAC contracting firm headquartered in Hyattsville, Maryland. Clark Mechanical, LLC  is a union contractor Signatory to Local 602 Steamfitters. We provide a wide range of HVAC and services to commercial clients. The Clark family has been in the construction industry since 1916. We specialize in construction renovation and perform a range of installation, replacement, repair, and maintenance services relating to HVAC.

D&B SAM - Systems for Award Management

DUNS: 831249912


  • ✅   Small Business


  • 238220 – Plumbing, Heating, And Air-conditioning Contractors
  • 236210 – Industrial Building Construction
  • 236220 – Commercial And Institutional Building Construction
  • 238290 – Other Building Equipment Contractors
  • 238990 – All Other Specialty Trade Contractors
  • 541330 – Engineering Services
  • 541513 – Computer Facilities Management Services